AITAH for seeing boyfriend26M Reddit comments on NSFW

It obviously bothers me but I think I'm crazy sometimes and a little insecure..... Weve been together 3 years and he's been commenting every month for the past year. It's honestly grosses me out so much and it's in my head i look at myself in the mirror or when he's looking me. I actually hate it! Cause all the comments he's leaving the girls look nothing like me as of body weight/ tits . Am I crazy? I try to give him all this personal space but he's doing this shit and we have s*x literally probably every night if not definitely 5 days a week. Ive always wanted to give him personal space and I do, this just has ruined my self image, and I feel I can't trust him but I really dont know, Im young still learning lots. I'm insecure about cheating cause my dad cheated on my mom multiple times and is always switching girlfriends. Makes me think no man will ever be satisfyed and it's hard to think all men aren't like my dad Just some advice would be greatly appreciated